These are threaded wall fitting used in the Poly Jet body. This is the standard fitting used with fiberglass spas.
Features
Material - PVC Plastic.
Wall Fitting Face Diameter - 3-1/8 in.
Front to Back - 1-3/8 in.
Thread Diameter - 2-1/2 in.
How I made $178,492 in three months by dropshipping US and European products
It was the early months of 2019, and Erin Rafferty had made a decision. She had spent the past year researching social media and e-commerce and this year, she was ready.